package com.duke.business.service.sb01.demos.utils;

/**
 * @author gjy
 * @create 2024-12-10 1:53 PM
 */
public class StringUtil {
    public static String concat(String str1,String str2)
    {
        try {
            Thread.sleep(1000l);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
        return str1 + "@" + str2;
    }
}
